This can be proven for any valid argument form using a truth table which shows that there is no situation in which there are all true premises and a false conclusion.
Founded in 1994, IntraLearn Software Corporation (ISC) is a pioneer of creating e-Learning and Knowledge Organization products for corporate enterprises, academic institutions, associations, government agencies and training suppliers.
The Union Carbide & Carbon Corporation (UCC) was formed in 1917 from the combination of four companies: Union Carbide Co. (incorporated 1898), Linde Air Products Co. (incorporated 1907), National Carbon Co., Inc. (incorporated 1899), and Prest-O-Lite Co., Inc. (incorporated 1913).